The program for the memorial also includes biographies of each of the 19 men killed in the blaze, so click over to the next page of this post to read those, if you haven't already.

There's an ongoing investigation into the events that led up to the firefighters' deaths.

A preliminary report included little more than, "Nineteen members of the Granite Mountain Hotshots were entrapped when flames overran their position on June 30. Eyewitnesses state that fire behavior was extreme with heavy winds. The crew of 19 deployed fire shelters late Sunday afternoon but did not survive."